import Vue from "vue";
import VueRouter from "vue-router";
import Login from "../components/Login.vue";
import Home from "../components/Home.vue";
import Welcome from "../components/Welcome.vue";
import Users from "../components/user/Users.vue";
import Rights from "../components/power/Rights.vue";
import Roles from  '../components/power/Roles.vue'
Vue.use(VueRouter);

const routes = [

  {
    path: "/",
    redirect: "/login"
  },
  {
    path: "/login",
    component: Login
  },
  {
    path: "/home",
    component: Home,
    redirect: "/welcome",
    children: [
      {
        path: "/welcome",
        component: Welcome
      },
      {
        path: "/users",
        component: Users
      },
      {
        path: "/rights",
        component: Rights
      },
      {
        path:"/roles",
        component:Roles
      }
    ]
  }

];

const router = new VueRouter({
  routes
});

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to: 将要访问的路由
  // from ：代表从哪个路径跳转而来
  // next: 是一个函数，代表放行.
  // next() :放行， next("/login") 强制跳转
  if (to.path == "/login") return next();

  // 获取Token
  const tokenStr = window.sessionStorage.getItem("token");
  if (!tokenStr) return next("/login");
  next();
});

export default router;
